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Questions and Answers
What is the primary purpose of abstraction in OOP?
Which OOP concept allows objects of different classes to respond to the same method call in different ways?
What is an example of using OOP in real-life applications?
What is the term for creating new classes that inherit properties and behaviors from existing classes?
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What is the purpose of getters and setters in encapsulation?
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Which of the following is NOT a key principle of OOP?
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What is the benefit of using interfaces in abstraction?
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What is an example of polymorphism in C#?
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What is the main difference between method overloading and method overriding in polymorphism?
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What is the primary benefit of using OOP in software development?
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Study Notes
Introduction to OOP
- OOP is a programming paradigm that organizes code around objects and their interactions
- Key principles: encapsulation, inheritance, abstraction, and polymorphism
Real-Life Examples of OOP
- OOP helps model real-world entities like Cars with attributes (color, make, model) and behaviors (accelerate, brake, turn)
- OOP is used in:
- Game development (characters, objects, interactions)
- Web development (user accounts, shopping carts, content management)
- Desktop applications (document editors, financial software, media players)
Core Concepts of OOP
Encapsulation
- Bundling data (attributes) and methods (behaviors) together within a class
- Controls access to data by making attributes private and providing public methods (getters and setters) to access and modify them
Inheritance
- Creating new classes (subclasses) that inherit properties and behaviors from existing classes (superclasses)
Abstraction
- Providing essential functionalities without exposing implementation details
- Uses interfaces to define what a class can do, not how it does it
Polymorphism
- Allowing objects of different classes to respond to the same method call in different ways
- Two main types of polymorphism in C#:
- Method Overloading: Having multiple methods with the same name but different parameter lists
- Method Overriding: Subclasses redefining inherited methods to provide specialized behavior
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Description
Learn the fundamental principles of Object Oriented Programming, including encapsulation, inheritance, abstraction, and polymorphism, with real-life examples.
